Which is why I was so surprised when six months into our relationship my partner casually mentioned he had gotten some pills from a friend who sometimes used them with his wife. He dropped the blue pills into my hand.

I was overcome with a mix of trepidation and excitement. Why did we need Viagra? More importantly, was it safe for someone who was healthy to use it? Viagra wasn’t on our fantasy list. This would be a new experience for both of us.

We did our research. He took to the internet, and I called friends. He was too embarrassed to ask his male friends if they’d taken any enhancements before. Ultimately, we decided to table the Viagra experiment for the time being. I held on to them at his request.

A few months later we were leaving for Puerto Rico for a four-day work trip. “Do you still have those pills I gave you?” he asked. I checked my purse. They were still there. He suggested we take them with us. So I packed them, of course. Then he took it a step further.

He suggested that it would be fun if I slipped them into his drink without him knowing. He gave me full and explicit permission to do so if I felt comfortable and it was the right time.

I played it cool. Giving a slight smile, a light shrug, and replying “we’ll see.” Meanwhile, the creative wheels were already turning. How would I do this without him knowing? And how would this affect him, if at all?

I was sitting in the car waiting for him on the second morning of our trip. I took a drink of a coconut water. There was a lot of pulp in it. So much pulp that a pill could be easily swallowed without noticing.

I giggled to myself. This was my chance.

I quickly picked up my purse, grabbed the pill, and dropped it in. When he arrived at the car I greeted him with the nearly empty can of coconut water. “Chug this so I can throw it away.” He noted the amount of pulp, but finished it anyway. He handed it back to me. I scanned the bottom of the can. The pill was gone.

We had been driving for a couple hours when I decided to test the effects of the Viagra. I ran my fingernails on his thigh. Up and down. Not saying a word. Then closer to his penis.

“Oh my god, you have me so hard,” he said in complete shock. I giggled. “You’re so sneaky.” I took that as a compliment and laughed. I felt accomplished and in control of how and when we would be passionate.

I knew what turned him on, but this was different. I was able to arouse him on demand. I wanted him to know I could arouse him at my pleasure, and he wouldn’t be able to resist.

I would lightly touch his thigh or a sensitive area and he’d immediately become very hard. Then I would just smile and walk away. I made it clear that I was the one in charge. This new power I had was a turn on for him. And also for me, because he was giving me permission to control his body.

The real fun began when we arrived at our destination in the rainforest. We walked on a trail that was off the hiking path until we came across an 80-foot waterfall. As we got closer, the water that crashed down was so loud and powerful that we could not even hear each other.

There was no more time for foreplay. We had sex three times that afternoon. Under the waterfall, in a cave, and out in the open beneath the sunset. We could do it at any time, anywhere, because he was always ‘up for it.’ So. Much. Fun.

I was not relying on him to be ready so he could initiate. It was all up to me.

Sometimes, our partners may be emotionally ready to have sex, but not-yet-there physically. Other times, it’s the opposite. But when they’re totally aligned, it’s the best. And it’s even better when it can be on-demand. ;)

Disclaimer: you should definitely consult a doctor before taking any prescription medications.